cd rom drivers missing

[green777]

hi, i have just cleaned my computer of adware/trojans and found i no lomger can use my cdrom drives, I dont have a install disk as all was pre-installed when i bought it. I had this problem once before anf cannot remember what i pressed on to get them back. Im sure i went into applications then drivers but not sure, when i check using the properties etc says hard ware installed but get a error code 37 come up for both my rom drives. (wish i had a cdrom install drivers disk at the start)Never got anything at all not even windows xp
Any help thanks